CN110360440B - Hydrogen energy vehicle hydrogen storage bottle - Google Patents

Hydrogen energy vehicle hydrogen storage bottle Download PDF

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Publication number
CN110360440B
CN110360440B CN201910683950.1A CN201910683950A CN110360440B CN 110360440 B CN110360440 B CN 110360440B CN 201910683950 A CN201910683950 A CN 201910683950A CN 110360440 B CN110360440 B CN 110360440B
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China
Prior art keywords
hydrogen
control valve
air
flow passage
liner
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Application number
CN201910683950.1A
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Chinese (zh)
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CN110360440A (en
Inventor
屠年波
郝义国
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Wuhan Grove Hydrogen Energy Automobile Co Ltd
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Wuhan Grove Hydrogen Energy Automobile Co Ltd
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Priority to CN201910683950.1A priority Critical patent/CN110360440B/en
Publication of CN110360440A publication Critical patent/CN110360440A/en
Application granted granted Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0119—Shape cylindrical with flat end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0626—Multiple walls
    • F17C2203/0629—Two walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/068—Special properties of materials for vessel walls
    • F17C2203/0682—Special properties of materials for vessel walls with liquid or gas layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/068—Special properties of materials for vessel walls
    • F17C2203/0685—Special properties of materials for vessel walls flexible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/061—Fluid distribution for supply of supplying vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F17C2270/0178—Cars
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention belongs to the technical field of new energy automobiles, and particularly relates to a hydrogen storage bottle of a hydrogen energy vehicle. The hydrogen storage bottle comprises an inner container, an outer container, a bottle plug, a hydrogen flow passage and an air flow passage; the inner container is a contractible flexible inner container; an opening is arranged above the outer container, and the bottle plug is connected to the opening of the outer container; an air interlayer is arranged between the inner container and the outer container; the inner container is provided with a hydrogen flow passage connecting hole; the bottle stopper is provided with two through holes, namely a hydrogen flow passage through hole and an air flow passage through hole; the hydrogen flow passage is provided with a first control valve and a second control valve; the air flow passage is provided with a third control valve and a fourth control valve. The beneficial effects of the invention are as follows: the control valve is used for facilitating the rapid vacuumizing before the hydrogen bottle is used, reducing the air residue in the hydrogen bottle and improving the purity of hydrogen storage; the flexible liner can be maintained and replaced and can be contracted, so that hydrogen can be fully released, and the hydrogen utilization rate is improved.

Description

Hydrogen energy vehicle hydrogen storage bottle
Technical Field
The invention belongs to the technical field of new energy automobiles, and particularly relates to a hydrogen storage bottle of a hydrogen energy vehicle.
Background
The hydrogen is called as three new energy together with solar energy and nuclear energy due to the advantages of high combustion efficiency, no pollution of products and the like. As a new energy source, hydrogen is widely applied to the fields of aviation, power, locomotive fuel cells and the like, and a hydrogen energy automobile is inevitably provided with a hydrogen storage bottle in the use process. Generally, although the hydrogen storage bottle can meet the use requirements in terms of strength and structure at present, the processing difficulty is relatively high, and the purity of hydrogen in the hydrogen storage bottle is low due to the accumulation of the use time, so that the durability of the hydrogen storage bottle is low and the universality is poor.
Disclosure of Invention
The invention aims to design a hydrogen storage bottle of a hydrogen energy vehicle, which solves the problems of low hydrogen utilization rate and low purity of the hydrogen storage bottle;
In order to solve the above problems, the present invention provides a hydrogen storage bottle for a hydrogen energy vehicle, comprising: the bottle comprises an inner container, an outer container, a bottle stopper, a hydrogen flow channel and an air flow channel; the inner container is a contractible flexible inner container; an opening is arranged above the outer container, and the bottle plug is connected to the opening of the outer container;
An air interlayer is arranged between the inner container and the outer container; the inner container is provided with a hydrogen flow passage connecting hole; the bottle stopper is provided with two through holes;
One end of the hydrogen flow passage is connected to the hydrogen flow passage connecting hole, and the other end of the hydrogen flow passage passes through a through hole of the bottle plug and is arranged outside the outer liner; two control valves, namely a first control valve and a second control valve, are arranged at one end of the hydrogen flow passage, which is arranged outside the outer liner;
One end of the air channel is communicated with the air interlayer, and the other end of the air channel passes through the other through hole of the bottle plug and is arranged outside the outer container; and one end of the air flow passage, which is arranged outside the outer liner, is provided with two control valves, namely a third control valve and a fourth control valve.
Further, the hydrogen flow channel and the air flow channel are in an inverted L shape.
Further, the inner container is replaceable;
Further, the air flow passage is connected with an external air compressor through a third control valve and a fourth control valve.
Further, the first control valve is connected to an external hydrogen source to inject hydrogen into the liner; the second control valve is connected to each hydrogen device of the hydrogen energy automobile in normal use so as to provide hydrogen for the hydrogen energy automobile; before the hydrogen storage bottle is normally used, the control valve is connected to an external air compressor, so that the external air compressor can pump out air in the liner, and the liner is in a vacuum state.
Further, the third control valve is used for controlling compressed air to release the air interlayer; the fourth control valve is used for controlling the injection of compressed air into the air interlayer;
Further, the external air compressor has an air pressure detection function;
further, the external hydrogen source has a gas pressure detection function;
further, the use principle of the hydrogen storage bottle of the hydrogen energy vehicle is as follows: s101: closing the first control valve and the third control valve, and opening the second control valve and the fourth control valve;
s102: the external air compressor pumps out the air in the liner through the second control valve, so that the air is in a vacuum state; the external air compressor injects compressed air into the air interlayer through a fourth control valve;
s103: judging whether the vacuum degree of the liner reaches a preset threshold lambda? If yes, stopping vacuumizing the inner container, closing the second control valve, and entering step S104; otherwise, jumping to step S102;
s104: judging whether the air interlayer pressure reaches a preset threshold value beta? If yes, stopping injecting compressed air into the air interlayer, and closing the fourth control valve;
S105: closing the second control valve and the fourth control valve, and opening the first control valve and the third control valve;
s106: the external hydrogen source injects hydrogen into the liner through the first control valve; the external air compressor releases air in the air interlayer through a third control valve;
S107: determining whether the compressed air sandwich pressure value reaches a preset threshold ω? If yes, the third control valve is closed, and the step S108 is performed; otherwise, jumping to step S106;
S108: judging whether the hydrogen pressure value of the liner reaches a preset threshold mu? If yes, the first control valve is closed, and the step S206 is entered; otherwise, jumping to step S106;
S109: closing the first control valve, the third control valve and the fourth control valve, and opening the second control valve;
s110: judging whether the hydrogen pressure value of the inner container is smaller than a preset threshold delta and the pressure value of the compressed air interlayer is smaller than a preset threshold omega is true? If so, the fourth control valve is automatically opened, the air interlayer is filled with compressed air, and hydrogen is completely released; otherwise, continuing to release hydrogen until the judgment condition is met;
s111: and (5) completing the release of the hydrogen.
The beneficial effects of the invention are as follows: the control valve is used for facilitating the rapid vacuumizing before the hydrogen bottle is used, reducing the air residue in the hydrogen bottle and improving the purity of hydrogen storage; the flexible liner can be maintained and replaced and can be contracted, so that hydrogen can be fully released, and the hydrogen utilization rate is improved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram showing the structural composition of a hydrogen storage bottle for a hydrogen energy vehicle according to an embodiment of the present invention;
fig. 2 is a schematic view showing a part of the construction details of a hydrogen storage bottle for a hydrogen energy vehicle according to an embodiment of the present invention.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
The embodiment of the invention provides a hydrogen storage bottle and a hydrogen storage method for a hydrogen energy vehicle.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a hydrogen storage bottle of a hydrogen energy vehicle according to an embodiment of the present invention, which specifically includes:
The device comprises an inner container 1, an outer container 3, a bottle plug 4, a hydrogen flow passage 5 and an air flow passage 6; the inner container 1 is a contractible flexible inner container; an opening is arranged above the outer container 3, and the bottle plug 4 is connected to the opening of the outer container 3;
An air interlayer 2 is arranged between the inner container 1 and the outer container 3; the inner container 1 is provided with a hydrogen flow passage connecting hole 11; two through holes are formed in the bottle plug 4;
One end of the hydrogen flow passage 5 is connected to the hydrogen flow passage connecting hole 11, and the other end of the hydrogen flow passage passes through a through hole of the bottle plug 4 and is arranged outside the outer liner 3; two control valves, namely a first control valve 51 and a second control valve 52, are arranged at one end of the hydrogen flow passage 5, which is arranged outside the outer liner 3;
One end 63 of the air channel 6 is communicated with the air interlayer 2, and the other end passes through the other through hole of the bottle plug 4 and is arranged outside the outer container 3; and two control valves, namely a third control valve 62 and a fourth control valve 61, are arranged at one end of the air flow passage 6, which is arranged outside the outer container 3.
Referring to fig. 2, fig. 2 is a schematic view showing a part of the structure of a hydrogen storage bottle of a hydrogen energy vehicle.
The hydrogen flow passage 5 and the air flow passage 6 are inverted L-shaped pipelines.
The inner container 1 is replaceable;
The air flow passage 6 is connected to an external air compressor via a third control valve 62 and a fourth control valve 61.
The first control valve 51 is connected to an external hydrogen source to inject hydrogen into the inner container 1; the second control valve 52 is connected to each hydrogen device of the hydrogen-powered vehicle during normal use to supply hydrogen to the hydrogen-powered vehicle; the control valve 52 is connected to an external air compressor before the hydrogen storage bottle is normally used, so that the external air compressor can pump out the air in the liner 1, and the liner 1 is in a vacuum state.
The third control valve 62 is used for controlling the compressed air to release the air interlayer 2; the fourth control valve 61 is used for controlling the injection of compressed air into the air interlayer 2;
the external air compressor has an air pressure detection function; the external hydrogen source has a gas pressure detection function; the use principle of the hydrogen cylinder is as follows:
s101: the first control valve 51 and the third control valve 62 are closed, and the second control valve 52 and the fourth control valve 61 are opened;
S102: the external air compressor pumps out the air in the liner 1 through the second control valve 52 to make the liner in a vacuum state; the external air compressor injects compressed air into the air interlayer 2 through the fourth control valve 61;
S103: judging whether the vacuum degree of the liner 1 reaches a preset threshold lambda? If yes, stopping vacuumizing the liner 1, closing the second control valve 52, and entering step S104; otherwise, jumping to step S102;
S104: determining whether the air interlayer 2 pressure reaches a preset threshold β? If yes, the injection of compressed air into the air interlayer 2 is stopped, and the fourth control valve 61 is closed;
s105: the second control valve 52 and the fourth control valve 61 are closed, and the first control valve 51 and the third control valve 62 are opened;
s106: the external hydrogen source injects hydrogen into the liner 1 through the first control valve 51; the external air compressor releases the air in the air interlayer 2 through the third control valve 62;
S107: determining whether the pressure value of the compressed air interlayer 2 reaches a preset threshold ω? If so, the third control valve 62 is closed, and the process proceeds to step S108; otherwise, jumping to step S106;
S108: judging whether the hydrogen pressure value of the liner 1 reaches a preset threshold mu? If yes, the first control valve 51 is closed, and the process proceeds to step S206; otherwise, jumping to step S106;
s109: the first control valve 51, the third control valve 62, and the fourth control valve 61 are closed, and the second control valve 52 is opened;
S110: judging whether the hydrogen pressure value of the liner 1 is smaller than the preset threshold delta and the pressure value of the compressed air interlayer 2 is smaller than the preset threshold omega is true? If so, the fourth control valve 61 is automatically opened, the air interlayer 2 is injected with compressed air, and hydrogen is completely released; otherwise, continuing to release hydrogen until the judgment condition is met;
s111: and (5) completing the release of the hydrogen.
The beneficial effects of the invention are as follows: the control valve is used for facilitating the rapid vacuumizing before the hydrogen bottle is used, reducing the air residue in the hydrogen bottle and improving the purity of hydrogen storage; the flexible liner can be maintained and replaced and can be contracted, so that hydrogen can be fully released, and the hydrogen utilization rate is improved.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims (8)

1. A hydrogen energy vehicle hydrogen storage bottle which is characterized in that: comprising the following steps:
The device comprises an inner container (1), an outer container (3), a bottle plug (4), a hydrogen flow passage (5) and an air flow passage (6); the inner container (1) is a contractible flexible inner container; an opening is arranged above the outer container (3), and the bottle plug (4) is connected to the opening of the outer container (3);
an air interlayer (2) is arranged between the inner container (1) and the outer container (3); a hydrogen flow passage connecting hole (11) is formed in the inner container (1); two through holes are formed in the bottle plug (4);
One end of the hydrogen flow passage (5) is connected to the hydrogen flow passage connecting hole (11), and the other end of the hydrogen flow passage passes through a through hole of the bottle plug (4) and is arranged outside the outer liner (3); two control valves, namely a first control valve (51) and a second control valve (52), are arranged at one end of the hydrogen flow passage (5) which is arranged outside the outer liner (3); one end (63) of the air channel (6) is communicated with the air interlayer (2), and the other end of the air channel passes through the other through hole of the bottle stopper (4) and is arranged outside the outer container (3); two control valves, namely a third control valve (62) and a fourth control valve (61), are arranged at one end of the air flow channel (6) which is arranged outside the outer liner (3);
The use principle of the hydrogen storage bottle is as follows:
s101: closing the first control valve (51) and the third control valve (62), and opening the second control valve (52) and the fourth control valve (61);
S102: the external air compressor pumps out the air in the inner container (1) through the second control valve (52) to enable the air to be in a vacuum state; the external air compressor injects compressed air into the air interlayer (2) through a fourth control valve (61);
s103: judging whether the vacuum degree of the liner (1) reaches a preset threshold lambda, if so, stopping vacuumizing the liner (1), closing a second control valve (52), and entering step S104; otherwise, jumping to step S102;
s104: judging whether the pressure of the air interlayer (2) reaches a preset threshold value beta, if so, stopping injecting compressed air into the air interlayer (2), and closing a fourth control valve (61);
s105: closing the second control valve (52) and the fourth control valve (61), and opening the first control valve (51) and the third control valve (62);
S106: an external hydrogen source injects hydrogen into the liner (1) through a first control valve (51); the external air compressor releases air in the air interlayer (2) through a third control valve (62);
S107: judging whether the pressure value of the compressed air interlayer (2) reaches a preset threshold omega, if so, closing a third control valve (62), and entering step S108; otherwise, jumping to step S106;
S108: judging whether the hydrogen pressure value of the liner (1) reaches a preset threshold mu, if so, closing a first control valve (51) and entering step S206; otherwise, jumping to step S106;
S109: closing the first control valve (51), the third control valve (62) and the fourth control valve (61), and opening the second control valve (52);
s110: judging whether the hydrogen pressure value of the liner (1) is smaller than a preset threshold delta and the pressure value of the compressed air interlayer (2) is smaller than a preset threshold omega, if so, automatically opening a fourth control valve (61), and injecting compressed air into the air interlayer (2) to completely release hydrogen; otherwise, continuing to release hydrogen until the judgment condition is met;
s111: and (5) completing the release of the hydrogen.
2. A hydrogen storage bottle for a hydrogen energy vehicle as claimed in claim 1, wherein: the hydrogen flow passage (5) and the air flow passage (6) are inverted L-shaped pipelines.
3. A hydrogen storage bottle for a hydrogen energy vehicle as claimed in claim 1, wherein: the inner container (1) is replaceable.
4. A hydrogen storage bottle for a hydrogen energy vehicle as claimed in claim 1, wherein: the air flow passage (6) is connected with an external air compressor through a third control valve (62) and a fourth control valve (61).
5. A hydrogen storage bottle for a hydrogen energy vehicle as claimed in claim 1, wherein: the first control valve (51) is connected to an external hydrogen source to inject hydrogen into the liner (1); the second control valve (52) is connected to each hydrogen device of the hydrogen energy automobile in normal use so as to provide hydrogen for the hydrogen energy automobile; the control valve (52) is connected to an external air compressor before the hydrogen storage bottle is normally used, so that the external air compressor can pump out air in the liner (1), and the liner (1) is in a vacuum state.
6. A hydrogen storage bottle for a hydrogen energy vehicle as claimed in claim 1, wherein: the third control valve (62) is used for controlling compressed air to release the air interlayer (2); the fourth control valve (61) is used for controlling the injection of compressed air into the air interlayer (2).
7. A hydrogen storage bottle for a hydrogen powered vehicle as claimed in claim 4, wherein: the external air compressor has an air pressure detection function.
8. A hydrogen storage bottle for a hydrogen powered vehicle as claimed in claim 5, wherein: the external hydrogen source has a gas pressure detection function.
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